Every few years, Tamil streaming finds a show that wants to push the romance template into slightly stranger, slightly braver territory. Heartiley Battery, arriving on ZEE5 on December 16, is one such entry. The series marks the return of the popular Heart Beat pair, Ravi and Anitha, but this time they step behind the curtain for a project that hands the spotlight to Guru Lakshman and Padine Kumar. The result is a quirky collision of young love, wild ambition, and the oldest question that refuses to sit still: can anyone truly measure what the heart feels.